Microsoft Technology Licensing, LLC

Chinese Academy of Sciences

International Business Machines Corporation

Leauto Intelligent Technology (beijing) Co. Ltd.

Institute of Geology and Geophysics, Cas

Oath Inc.

Excalibur Ip, LLC

Institute of Geology and Geophysics

Yunnan Dianzhong Water Diversion Engineering Co.

Microsoft Corporation

Yu Zou

Jian Wang

Shengwen Qi

Bowen Zheng

Dongmei Zhang

Songfeng Guo

Ming Chang

Guangming Luo

Shi Han

Ning Liang

Xiaolin Huang

Yongchao Li

Peng Liu

Xiaokun Hou

Jose Vazquez

Xin Wang

Lei Huang

Dan Li

Zhouchen Lin

Yong Xu

Robin Neil Grosset

Jian-Lai Zhou

Xianfang Wang

Xiaohui Hou

Wenrui Li

Mingqing Xu

Tianming Huang

Kunsheng Chen

Lina Ma

Zan Wang

Libo Jiang

Wei Lin

Hui Zhou

Manchao He

Guoliang Li

Lei Xue

Yanlong Kong

Jianing Cong

Weiwei Zhu

Shuaihua Song

Xinjian Chen

Fengjiao Tang

Siwei Lyu

Yue Li

Patrice Y Simard

Jian Jun Wang

Wei Lu

Charlton E Lui

Lei Ma

Jian J Xu

Sashi Raghupathy

F David Jones

Liyong Chen

Jiang Wu

Michael Shilman

Wang Zhang

Haijun Zhao

Zhiqing Li

Zile Wei

Frank Soong

Zhendong Cui

Chao Jin

Bo Wan

Chunling Liu

Yi-Jian Wu

Wenjie Hao

Yuran Zhang

Jinxuan Li

Shishu Zhang

Qingze Hao

Tao Wang

Yu Wang

Hang Li

Jing Min Xu

Liang Wang

Hao Zheng

Ying Chu Wang

Bing Li

Yantao Li

Zhaobin Zhang

Hao Wei

Yue Yang

Wenli Zhu

David B Cushing

Xueliang Wang

Tongxian Chen

Liheng Wang

Lihui Li

Hongyun Yang

Yanhui Dong

Jie Guo

Xin Yu

Avery W Hagleitner

Tao G Liu

Yanjun Shang

Gong Cheng

Jia Huo

Chunming Wang

Wenjiao Xiao

Zhifa Zhan

A method and system for monitoring structural deterioration of a reservoir rock mass under a long-time high-temperature condition, and a product are provided. The method includes: arranging ultrasonic transducers and fiber optic extrinsic Fabry-Perot interferometric (EFPI) sensors in a loading briquette; loading ultrasonic waves on a rock mass sample with the ultrasonic transducers; monitoring ultrasonic and acoustic emission signals at the rock mass sample with the fiber optic EFPI sensors; inverting a velocity model indicating a change of a wave velocity inside the rock mass sample over time by fast marching acoustic emission tomography using standard optimization (FaATSO) according to the ultrasonic and acoustic emission signals; and conducting joint inversion by a fast-marching method according to the velocity model, the acoustic emission signals, and observation data to determine a position of rock mass fracturing in the rock mass sample.

Method and system for monitoring structural deterioration of reservoir rock mass under long-time high-temperature condition, and product

Provided are a method and device for quantitatively characterizing development positions of geological disasters in slopes, and an electronic device. The method includes: acquiring a slope boundary of a target slope, and constructing a triangle matching the slope boundary, three vertices of the triangle are A, B and C respectively; acquiring, based on the triangle, slope terrain points within a range of triangle; assigning preset attribute information to each slope terrain point Dof the slope terrain points, the preset attribute information of each slope terrain point Dat least includes an angle attribute of each slope terrain point Dand a distance ratio attribute of each slope terrain point D; and screening out disaster points from the slope terrain points, and plotting and displaying, based on angle attributes and distance ratio attributes of the disaster points, the disaster points in a preset area in a polar coordinate system.

Method and device for quantitatively characterizing development positions of geological disasters in slopes, and electronic device

A real-time quantitative characterization method, equipment and a medium for rock mass evolution are disclosed. The method includes: the multiphase field detection and monitoring data is fused; a deep learning model driven by physical principles is established based on the physical principles of fluid density; the deep learning model is trained using real-time fused data as input and corresponding evolution distribution images as output; a trained deep learning model is used to obtain an evolution distribution image based on multi-phase field detection and monitoring data of different time periods and types; a mathematical model is used to quantitatively characterize of physical and mechanical parameters in the whole process of progressive failure of the dynamic evolution of the rock mass based on the macroscopic mechanical parameters and evolution distribution images synchronized with multiphase field detection and monitoring data.

Real-time quantitative characterization method, equipment and medium for rock mass evolution

A sample mounting device for direct tensile test of rock mass is provided, which includes a first positioning stage, a second positioning stage, a first support piece, a second support piece, and a screw drive mechanism. The second positioning stage is arranged above the first positioning stage and capable of moving up and down, and cushion blocks for gluing with the rock mass are coaxially and detachably arranged at opposite ends of the first positioning stage and the second positioning stage, and a rock mass mounting area is formed between the two cushion blocks. A screw of the screw drive mechanism includes a first thread segment and a second thread segment with opposite thread directions. The first support piece is connected with the first thread segment through a nut seat, and the second support piece is connected with the second thread segment through a nut seat.

Sample mounting device for a direct tensile test of rock mass

A physical simulation test system for studying a tunnel structure under active fault movements includes: a simulation box, a loading frame, a first loading mechanism, a second loading mechanism and a third loading mechanism. The simulation box is a hollow and open box structure including a first box and a second box that can slide relative to each other. The loading frame includes a crossbeam, a first bracket, a second bracket, and a third bracket. The simulation box is located below the crossbeam, between the first bracket and the second bracket, and in front of the third bracket. The first loading mechanism is disposed on the first bracket, the second loading mechanism is located below the first box, and the third loading mechanism is disposed on the third bracket. The three loading mechanisms are configured to provide loading forces in three different directions to the first box.

Physical simulation test system for studying tunnel structure under active fault movements

An adjustable device for railway to cross active faults is provided to fix a rail and a sleeper, including: a fastener mounting base, disposed between the rail and sleeper; clamping pipes, disposed between the fastener mounting base and the sleeper, the sleeper is provided with a through groove, and the clamping pipes are detachably fixed inside the through groove; control parts, disposed on an inner wall of the clamping pipes, each of the control parts is configured to detect lateral pressures between the fastener mounting base and corresponding one of the clamping pipes, thereby to separate the corresponding one of the clamping pipes from the through groove, the device ensures that the rail will not produce bending deformations after the lateral dislocation of the bottom layer during earthquake events, and ensure that a train or rail repair vehicle can pass at a low speed after earthquake.

Adjustable device for railway to cross active faults

A method for establishing a geostress field distribution of slopes in canyon areas includes: obtaining a persistence ratio of a fracture surface based on a structural plane trace length and a rock bridge length of the fracture surface, and then obtaining a fracture stage of a crack according to progressive failure characteristics of rock mass, combining a character of the fracture surface to obtain magnitude and direction of a maximum principal stress, and establishing the geostress field distribution. The method is simple to operate, does not need to carry out geostress testing, does not need a large amount of manpower and material resources, does not need redundant fund investment, and can simply and effectively obtain geostress field data. Moreover, combining with the geostress field inversion technology, a large-scale geostress field distribution condition can be obtained, which can provide a basis for engineering site selection and engineering rock mass stability determination.

Method for establishing geostress field distribution of slopes in a canyon area

A clamp and a shear test device are provided, and relate to the technical field of rock mass mechanics tests. The clamp comprises a box body, wherein an opening is formed in one side of the box body, two clamping structures are oppositely arranged in the box body, a sample is arranged between the two clamping structures, each clamping structure comprises an adjusting mechanism, and a distance between the two clamping structures is adjusted through adjusting mechanisms of the two clamping structures. According to the clamp, real-time dynamic adjustment is conveniently and rapidly achieved, the stability of sample clamping is ensured, and therefore the requirement that the shear load can be truly and effectively transmitted to the sample through the box body is met.

Clamp and shear test device

An experimental system for simulating creep and stick-slip dislocations of a fault in a tunnel structure includes a box structure, a supporting device and a fault dislocation loading system. A friction effect layer, a first surrounding rock layer, a tunnel structure model, a second surrounding rock layer and an overburden pressure layer are sequentially arranged in the box structure from bottom to top. The bottom of the box structure is provided with a through hole. A plate assembly is provided on the through hole, and includes a first guide plate, a second guide plate and a loading plate. Inner sides of the first guide plate and the second guide plate are respectively provided with a first slide rail and a second slide rail. The loading plate moves along the first slide rail and the second slide rail under the action of the fault dislocation loading system.

Experimental system for simulating creep and stick-slip dislocations of fault in tunnel structure

A variable angle loading testing machine is provided, which may include a bottom plate and a base fixedly connected to the bottom plate. A rock-sample accommodating cavity is formed in the base, and a rectangle-shaped sample is suitable for being placed into the rock-sample accommodating cavity. A side of the base is fixedly connected to two arc-shaped tension beams arranged in parallel, and a variable angle loading mechanism is slidably connected between the two arc-shaped tension beams. Through-holes are formed on the base, and an output end of the variable angle loading mechanism abuts against the rectangle-shaped sample through one of the through-holes. Loading and unloading of a stress with variable direction and magnitude under excavation disturbance can be simulated, which is of great significance for understanding mechanical behaviors of rock-soil mass under excavation disturbance.

Variable angle loading testing machine

The present invention discloses a type of energy-absorbing rock bolt device with umbrella-shaped structure, which consists of a body of bolt, and one end of the said body of bolt is equipped with a preloaded system, as well as the other end of the said body of bolt is equipped with the first support system, in addition, the said body of bolt is equipped with several second support systems, and the said second support system is located between the said preloaded system and the said first support system; meanwhile, the said second support system consists of the first umbrella-shaped support system and the second umbrella support system.

Type of energy-absorbing rock bolt device with umbrella-shaped structure

A rock mass shear test system for high-energy accelerator computed tomography (CT) scanning includes double horizontal loading devices, a first bearing device for bearing a static shear box, a second bearing device for bearing a dynamic shear box, and a normal loading device, etc. In the test, the double horizontal loading devices simultaneously apply an identical loading force to the rock mass, and the normal loading device applies a shear force to the rock mass. The double horizontal loading devices are provided in parallel and spaced apart, a loading force is applied in the horizontal direction, and a shear force is applied in the vertical direction, so that the loading cylinder and the rock mass sample are effectively prevented from interfering with each other during the accurate scanning process of the shearing progressive failure process of the rock mass.

Rock mass shear test system for high-energy accelerator computed tomography (CT) scanning

An experimental system for simulating the effect of a fault stick-slip displacement on a tunnel engineering includes a model box system and a stick-slip loading system. The model box system is configured to simulate an interaction between two walls of a fault. The stick-slip loading system includes a first loading assembly, a second loading assembly and a bearing assembly. The first loading assembly includes a first loading device, and a first sample frame configured to place a main loading rock mass sample. The bearing assembly is arranged on two sides of the first sample frame. Sub-loading rock mass samples borne by the bearing assembly are configured to abut against the main loading rock mass sample under the action of the second loading assembly. A method for simulating the effect of a fault stick-slip displacement on a tunnel engineering based on the above system is further provided.

Experimental system and method for simulating effect of fault stick-slip displacement on tunnel engineering

A shear box for testing cyclic shear characteristics of a rock mass discontinuity includes: an upper shear box including an upper semi-open cavity composed of an upper left side plate, an upper right side plate, an upper front side plate, an upper rear side plate and an upper top plate; and a lower shear box including a lower semi-open cavity composed of a lower left side plate, a lower right side plate, a lower front side plate, a lower rear side plate and a lower bottom plate; the upper shear box includes at least one first adjusting device for adjusting a space size of the upper semi-open cavity; the lower shear box includes at least one second adjusting device for adjusting a space size of the lower semi-open cavity; and the upper shear box and the lower shear box are placed opposite to each other.

Shear box for testing cyclic shear characteristics of a rock mass discontinuity

Method, system, and programs for providing content recommendation are disclosed. A first set of candidate content items may be generated based on a user profile, and a second set of candidate items may be generated based on the likelihood that the user will click a corresponding candidate content item in the second set. The candidate content items in the first and second sets may be ranked together using a learning model and presented to the user as content recommendations based on their rankings. The likelihood that the user will click a given candidate content item in the second set may be estimated based on similarities between the given content item and content items related to the given content item. Such a similarity may be computed based on activities performed by users who have viewed both the given content item and a related content item.

Method and system for enhanced content recommendation

Growing community of inventors

Beijing, China

Yu Zou